Adjustable bracket for lamps.



F. G. DOUGLAS.

ADJUSTABLE BRACKET FOB. LAMPS. uruunxox TILED MAR. 23, me.

Patented Mar. 23, 1909.

ADJUSTABLE BRACKET FOR LAMPS.

Specification of Letters Patent.

Patented March 28, 1900.

Application filed March 28, 1908. Serial No, 422,590.

To all w/zrmi it may concern:

in it known that l, l onnns'r (l. Douoriis, a citizen of the UnitedStates, residing at Cleveland, in the county of Cuyahoga and State olOhio, have invented certain new and useful Improvements in AdjustableBrackets l'or Lamps, and do declare that the lollowing is a full, clear,and exact description ol the invention, which will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to adjustable brackets for lamps, all substantiallyas shown and described and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a front elevation of thebracket, and Fig. 2 is an edge elevation thereof. Fig. 3 is a plan viewof Fig. 1. Fig. 4 is a horizontal section of the base of the bracket,and Fig. 5 is a.

cross section on the line of the tightening screw. Fig. 6 is anelevation of a modification.

The invention as thus shown is designed more especially for vehiclebrackets, say auto mobiles, but is not limited thereto and comprises apair of horns or prongs 2 and 3 respectively, supported upon differentand independent axes in a common base and shaped and related as shown soas to adapt the same to such varying adjustments as lamps of varyingsizes and positions may require. For example, lamps as they are found inthe market vary considerably in width, so that the said horns or prongsneed to be adjustable to accommodate them to different sizes of lamps.Then again, it frequently is desirable to change the relative positionsof lamps so as to bring them nearer to or farther from a given object orposition, and the said horns can be swung on a radius which will throwthem bodily in advance of the base or at the rear thereof, at pleasure.Thus, the said horns are constructed alike with a base portion 5 atright angles to the vertical portion and a compound curve 8 between saidportions, and each has a hub 6 provided with a vertical bore to receivea pivot, in, bolt or rivet 12 through the same and t rou h the sides 9and 10 of the base. The said hubs 6 are tapered externally from theirlower portion or base u ward so as to be relatively smaller at t e topthan at the bottom, as shown, and are independentl supported between theupper and lower ates 9 and 10 of the base on the separate pivots 12 inthis instance I.

bracket is supported and upon which the ada justnionts are made Now, ameans for affording the horns 2 and 8 the necessary adjustment and tolock the same rigidly on their respective pivots, I provide two wedgingor clamping blocks or members 14 and 16 respectively, of substantiallyblock pattern which are interposed between the plates 9 and 10 and theopposite hubs 5. These blocks or parts are fashioned at their edges toconform to the shape of hubs 6 and to effect a tight friction rip on thecorresponding sides of the said rubs and thereby look said horns in anyadjusted position, and a tightening screw or bolt 15 unites the saidblocks. The block 16 serves as a nut in this instance for said screw.Obviously, an outside nut for the screw would be the mechan icalequivalent of this arrangement. Finally, a set screw 18 looks screw 16,This describes the complete bracket.

The lamp, not shown, is engaged on the extremities of the horns 2 and 3,which have reduced ends terminating in shoulders 20, on which the lamprests, and the position of the horns relatively is fixed according tothe size and style of lamp used as above described. The entire bracketis supported b r the lateral arm 13. The two horns are ocked by the samemeans in the same operation, as by tightening screw 15.

In Fig. 6 a slight modification of the parts shows the hubs 6 of arms 2and 3 largest in ns cross section at the center and tapered thencetoward each end, and blocks 14 and 16 are correspondingly shaped, thatis, they are narrowest at the center and flare slightly toward topand.bottom to match the hubs 6".

What I claim is 1. In lamp brackets for vehicles and the like, a pair ofhorns constructed with rela tively reduced extremities to hang a lampupon and shoulders about the base of said extremities, each horn havinga vertical and a horizontal portion and a compound curved portionbetween said vertical and horizontal portions, and each horn providedwith a conical hub having a central bore parallel with the verticalportion. of the horn, 1n combination with a base in which said horns areindependently lower plates and tightening; blocks between the )lutes,and a screw to tighten. the said hloel s against said huhs,

2. In huup brzwket'e, a pair ol horns lntving eeeh a vertical portion(:onstrueted. at its top with a reduced and shouldered extremity toengage a hoop thereon, eeeli horn having a compound eurved portionconnecting with said vertical portion and a horizontal portion at itslower end provlded with mounted, and upper and t eonirul huh, inmnuhinution with it sup port for mid horns eomprieing upper end lowerplates and hloeks hetween said plates and. (lumping holts lorking saidhloeks on said hubs.

.lu testimony whereof I Sign this speeilieu- Ho] 1. in the presenoe oftwo witnesses.

l (.)liltl lv"l G. DOUGLAS Witnesses:

E. M. Flsnnu, V. E. FISHER.

